Well, I think the gay gene is maybe a different example, because you would want to arouse the question, do we think the life with attraction to your own sex is any worse than life without it?

我觉得同性恋基因可能是个不同的例子，你可能想要引出这个问题，那就是，被同性所吸引,这是否意味着一个人的生活就要比其他人糟糕呢？

普林斯顿公开课 - 人性课程节选

So the problem I want to do-- there are many things you could do but I just picked one, and this is the one with round numbers, so I can do it without a calculator.

我想讲的这道题,类似的题目很多,但我就选了其中一个,这道题涉及的数字都是整数,所以我不需要计算器

耶鲁公开课 - 基础物理课程节选